风波联合载荷下海上风力机塔筒的疲劳寿命预测

朱志松; 朱龙彪; 季采云

风波联合载荷下海上风力机塔筒的疲劳寿命预测

1.
南通大学,机械工程学院南通 226019

基金项目:

江苏省自然科学基金项目(BK2009160)资助

详细信息

作者简介:
朱志松(1975-)，高级实验师，硕士，研究方向为海洋结构物设计与分析，zh.zhs@ntu.edu.cn

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出版历程
- 收稿日期: 2012-03-26
- 刊出日期: 2015-06-10

Fatigue Life Prediction of the Offshore Wind Turbine Tower under Combining Load of Wind and Wave

1.
School of Mechanical Engineering,Nantong University,Nantong 226019

摘要

摘要: 海上风力机塔筒身处复杂多变的海洋环境中,其受到风载荷、波浪载荷和海水腐蚀等多方因素影响。为了保证塔筒在其寿命周期内可靠运行,针对南通沿海2.5 MW海上风力机塔筒,根据特定海区的服役工况,研究了其结构形状和单一工况下的风波联合载荷特征,设计疲劳试验方案并获得了塔筒材料Q345D在海水腐蚀下的S-N曲线,在ANSYS Workbench中对塔筒进行了结构瞬态分析和疲劳寿命预测。仿真结果表明:2.5 MW海上风力机塔筒的预计服役寿命为46年,超过了其设计寿命20年,保证了海上风力机工作可靠。
- 海上风力机 /
- 塔筒 /
- 风波联合载荷 /
- 寿命预测 /
- 海水腐蚀
Abstract: The offshore wind turbine (OWT) tower is located in the complex marine environment, and it is subjectto wind load, wave load, seawater corrosion and so on. In order to ensure the reliable operation in the life cycle oftower, the Nantong coastal 2. 5 MW OWT tower at the service condition of particular sea areas is analyzed as follows: the structural shape of the tower and combining load characteristics of wind and wave under a single workingcondition are discussed; the fatigue testing program of the tower material Q345D is designed, and the S-N curveunder the seawater corrosion is obtained; the transient structural analysis and fatigue life prediction of the tower areperformed by using the ANSYS Workbench. The result shows that the estimated service life of 46 years is more thanthe design life of 20 years for 2. 5MW OWT tower, which can ensure the reliable work of OWT.
- combining load of wind and wave /
- life prediction /
- seawater corrosion /

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参考文献(10)

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